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QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#499530	#6723. Grid with Arrows	Umok	WA	235ms	21680kb	C++20	2.0kb	2024-07-31 15:24:26	2024-07-31 15:24:28

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[2024-07-31 15:24:28]
评测

测评结果：WA
用时：235ms
内存：21680kb

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[2024-07-31 15:24:26]
提交

answer

#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
const int N = 1e5 + 5;
#define int long long
typedef pair<int, int> PII;
#define MAX LONG_LONG_MAX
string mp[N];
vector<int> ar[N], f;
vector<int> st[N];
int n, m;
int finds(int x)
{
    if (f[x] != x)
        f[x] = finds(f[x]);

    return f[x];
}
PII find(int x, int y)
{
    int xx = x, yy = y;
    if (mp[x][y] == 'r')
        yy += ar[x][y];
    else if (mp[x][y] == 'd')
        xx += ar[x][y];
    else if (mp[x][y] == 'l')
        yy -= ar[x][y];
    else
        xx -= ar[x][y];
    if (xx < 1 || xx > n || yy < 0 || yy > m)
        return {0, 0};
    return {xx, yy};
}

void solve()
{
    cin >> n >> m;
    int ans = n * m;
    f.clear();
    for (int i = 1; i <= n;i ++)
    {
        ar[i].clear();
        st[i].clear();
    }
        for (int i = 1; i <= n; i++)
        {
            cin >> mp[i];
            mp[i] = " " + mp[i];
        }
    for (int i = 1; i <= n; i++)
    {
        ar[i].push_back(0);
        f.push_back(0);
        st[i].push_back(0);
        for (int j = 1; j <= m; j++)
        {
            int x;
            cin >> x;
            ar[i].push_back(x);
            f.push_back(0);
            st[i].push_back(0);
        }
    }
    st[0].push_back(0);
    for (int i = 1; i <= ans; i++)
        f[i] = i;

    int num = 1;
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= m; j++)
            st[i][j] = num++;

    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= m; j++)
        {
            auto a = find(i, j);
            int x = a.first, y = a.second;
            f[finds(st[i][j])] = f[finds(st[x][y])];
        }

    map<int, int> q;
    for (int i = 1; i <= ans; i++)
        q[f[i]]++;
    if (q.size() == 2)
        cout << "Yes" << endl;
    else
        cout << "No" << endl;
}
signed main()
{
    int tcase;
    cin >> tcase;
    while (tcase--)
        solve();
    return 0;
}

Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 2ms

memory: 6664kb

input:

2
2 3
rdd
url
2 1 1
1 1 2
2 2
rr
rr
1 1
1 1

output:

Yes
No

result:

ok 2 token(s): yes count is 1, no count is 1

Test #2:

score: -100

Wrong Answer

time: 235ms

memory: 21680kb

input:

1109
5 8
rddddldl
drruludl
rrldrurd
urrrlluu
uurrulrl
4 4 1 2 4 3 1 6
1 3 5 1 1 1 3 6
2 4 1 1 2 1 1 1
2 3 4 2 4 3 3 3
4 1 1 2 2 5 1 5
7 9
rdrddrdll
urrdruldl
ruullrulu
drrlrlddl
rrrdddlll
ruulururl
ruurrlluu
7 1 1 1 2 1 2 3 6
1 7 3 1 3 1 2 1 8
2 2 1 2 4 3 1 2 2
2 2 4 1 1 5 3 3 1
3 4 6 1 2 1 2 7 7
6 ...

output:

No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes...

result:

wrong answer expected YES, found NO [1st token]